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Jupyter Notebook and Lab - IDEs for Data Scientists
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topics:

- motivation and background
- run jupyter: local and remote.
- add extensions: especially TOC.
- magics (time, import code, save code, etc.)
- Maybe also mention jupyter lab when talk about jupyter notebook, 
  which is in active development, and jupyter notebook is in maintenance mode. 
  (2021-12-07, advice from Tao Jing)